public class Main {
    public static void main(String[] args) {
//        int[] nums = { 2, 7, 11, 15 };
//        int target = 9;
//        int[] a = Solution1.twoSum(nums,target);
//        System.out.println(a[0]+""+a[1]);
        int a = -12;
        System.out.println(a / 10 + " " + a % 10);
        System.out.println((-123141234 ^ 12412541) >> 31);
        System.out.println(Integer.toBinaryString(-4));
        System.out.println(Integer.toBinaryString(-4 >> 2));
        System.out.println(Integer.toBinaryString(-4 >>> 2));
        //System.out.println(Integer.MIN_VALUE - 1);
    }
}
